A crazy amazing contraption developed in Denmark. It’s called the Pyro Board: An Audio Visualizer Created from an Array of 2,500 Flames.
Derek Muller from the very fine science video blog Veritasium visits with a team of “phsyics and chemistry demonstrators” who built this ridiculous sound board that demonstrates the effect of sound waves traveling through flammable gas. The first half deals mostly with how it works, around 3:38 it turns into pure music and fire.
Courtesy of Cristopher Jobsonhttp://creatorcourse.com